Tool holder



March 2 1926. 1,575,314

A. BOUSQUET TOOL HOLDER Filed Sept. 19, 192-2 v on UNITED "STATES rareurorrlce;

AURIL nonsemlr, or sourniamnen, MASSACHUSETTS.

TOOL HOLDER. 7

i ing iicaudn'aiea Septeinber 1a, 1924 sexism. 738,725

To ali wkom, it may concern:

Be. lteknown that I, AURIL Bousonntr, a

citizen :of Canada, residing at Southhridge, in the county-of VVorcester' and State of 5 Massachusetts, have invented anew and use ful Tool Holder, of which the: following is a specification.

This IlIlVBIltlOlirelates to a tool holder "for a lathe or similar tool.

Theprincipal objects of the invention are to provide a tool holder he. set in the tool rest .wi

which can always th its shank in a horizontal lpositionand with. its edges in a PQSIUQD; perpendicular to the, axis lot the Work and to arrange, it kinds oi tools can he set without changing the position of the tool so that difi'erent in the tool holder holder-relative to the work or post to proride this toolholder with means for supportingalturning tool in right handed position or in left handed position, a boring tool or a cutting off tool all in small compass and. without, as state d above, changing the position Of tlle tool holder or tool. post; andelso to provide a gauge'for locating theucarriage longitudinally especially adaptedjfor usewith a cutting oli tool.

Otherpbjects and advantages of the invention will appear hereinafter.

Reference is to be had tothe accompanying drawings, in which is a-plan of a tool holder I con stnucted in accordance with; this invention,

showing it as carryinga cutting oittool and illustrating in dotted lines the action of thegauge; j W F1gg2 1s a side vlewoif the same Fig. 3 is a plan ,of the] tool holdershow ing a boring tool mounted therein; Fig. 41s a plan of ltjshowing a turning tool in full lines in: positionlin the holder and illustrating in dotted lines..the.position of a turningtool of the oppositehand .Fig. 5 is aplan of the lower jaw ofthe tool holderwith the-upper Fig. 6 is a bottom plan Fig. 7 is a side View op Fig, 2, with, the aws se out any. tools inposition;

jaw removed; of the upper jaw; posite that shown parated and withv F igii is a sectional view through the:

work, as showni rFigfL the shank 10 will, i

be located at an. angle thereto. This angle is intended to be permanent, that is to say, when-the tool is set in position as shownin l? ig.-1 for use with a cutting off toolx13, it; is kept in that position for use with the otheritoolsTi'or whiclfitis adapted, as will appear. i

This bottom aw 12, as has been men tioned, is; provided with two diagoi'lallcross slots 514i and t5 crossing each other at angles only slightly less than rightangles and fhoth of Them located'iu front ofthe perijoration .16 .which receivcs'the clamping bolt -17 4 This jawisgilso provided with; a transverse horizontal. v seini cylindrical groove 18 extendingclear across it back of the pe'rfora} tion 16., ,In tllevside of this jaw is a longi tudinal groove which extends throughout the length otthe jaw and is arranged vertically and undercut a little at the loot j Thisi'lower jaw is intended to. cooperate with 'a eparate upper jaw 22. This upper jawflh'as apair of grooves 24; and 25 arranged like the grooves 14; and '15 so as to co-operate with them when it isturned over froinflthe position shown. in 6' tothat shown in Fig. "7 which istheoperativepm sition; .It is also provided with a perforation' 26 .to register with the perforation 16 and with a semi-cylindrical transverse groove 28 tocoroperate with the. gr0ove'18 and from a cylindrical passage. It also has on (one, side "a" lo11giti1'clinal, groove "29 which co;operatesfwiththe groove 19 onthe other jaw. to complete the holding, means" for the cutting tool. 13. Thisi cuttingf tool \is beveled on one or both edgesand one or both of ,these grooves 19. and 29 isbeveled i achave a loose pivotal action.

the upper the way.

cordingly so as to hold the cutting off tool in position on the side of the tool holder, as shown in Fig. 1. Its cutt-ing front edge projects from the front of it and the tool is exactly perpendicular to the axis of the work IV.

The inner end of the shank 10-is provided with a projection 30 and a slot 31. The slot extends clear across it under the projection. The end of the upper jaw 22 is provided with a projection 32 adapted to fit into the slot 31. This slot and projection are: arranged parallel to the axis of the work and this constitutes a means for holding the upper jaw in position and enabling it to The jaws are held in fixed position relative to each other by the bolt 17 passing through the perforations 16 and 26 and are clamped together so as to hold any of the tools that are put in them, as for example, the cutting of tool 13 previously referred toi If a turning tool 33 is to be used for turning one way it is put in one of the diagonal slots and clamped in position shown in full lines in Fig. 4. If the opposite handed turning tool 34 is to be used it is put in the other diagonal slot and clamped in position, as shown in dotted lines in Fig- 4. .When it is desired'to employ a boring tool 35, it is put into the cylindrical perforation formed by the two grooves 18 and 28 and the bolt 1'7 clamped down. In Fig. 3 I have shown a small size borin tool 35 located'in a split bushing 36 held in this way, but a boring tool having a shank the size of the bushing canalso be held.

For co-operation with the cuttin ofi'tool I have provided a headed stud 3 on the side of the lower'jaw 12. On the shank of this stud is mounted a. longitudinally slotted plate 38. which can bemoved back and forth on the stud without disengaging it. This plate is provided with a gauge screw 39 having a check nut 40 on it passing through the plate to hold the gauge screw in adjusted position. This screw is turned on the stud to engage the work as indicated in dotted lines in Fig. 1 to show just how far to move the carriage to bring the cutting of? tool to the right position relative to the work. When not in use, this. gauge is thrown back to the position shown in Fig. 1, where the end of. the screw'rests on top of jaw, where it is entirely out of In this way the same tool holder can be used with several different tools and can be set up once for all in the right position so that when the tools are applied toit they also are in the right position for effective operation. This does away with the necessity for the operator to keep loosening the tool holder in the tool post and changing its angle and yet the best class of Work. is secured. The tools, of course, will be sharpened so as to adapt them to be used in these particular positions. They are so located as to prevent chattering.

Although-I have illustrated and described only a single form of the invention and shown only a definite-number of ways of mounting tools on it, I am aware of the fact that other tools can be employed in connection. with .a tool holder constructed in accordance with this principle and that other.

modifications in details of construction can be made also without departing from the scope of the invention as expressed in the claims.

Therefore I do notwish to be limited in these respects but what I do claim is:--

1. In a cutting off tool, the combination with a pair of horizontal jaws having opposite" grooves along one edge for receiving a cutting off blade, the tool having a shank' for holding it in a tool post, and a horizontal headed pivot stud on the opposite side-of one jaw, of a longitudinally slotted plate pivoted on thestud and located parallel with'the blade so as to be adjustable longitudinally, and a gauge screw 'mounted on the plate, whereby the'plate can be-moved-to bring the screw to the front of the tool,the screw being" adjustable to bring itinto contact with a surface parallel withthe blade to act as a gauge.

2. Ina cutting off tool, the combination with a pair ofjaws havingopposite grooves along one edge for. receiving a cutting ofi' blade, 'the tool having a shank for holding it in a tool post, and a pivot stud on the opposite side of one'jaw, of a plate pivoted on the stud, and a gauge screw mounted on the plate, whereby the plate canbe moved to bring the screw to the front of the tool, the screw being adjustable to bring" it into contact with a surface to act as a gauge, the shank having a surface forsupporting said screw'when turned back to inoperative position. i 7 r 3. Ina cutting ofl" tool, the combination with a pair ofjaws having opposite grooves along one edge for receiving a cutting off blade, the tool having a shank for holding it in a tool post, and a pivot stud on the op 0- site side 'ofone jaw, of a. longitudina lly slotted plate pivoted on the stud and located parallel with the blade so as to be adjustable longitudinally, and a gauge screw mounted on the slotted plate, whereby the plate can be moved to bring the sorewto the front of the tool, the screw bein'g'adj'ustable to bring itinto contact with a surface parallel with the blade to act as a gauge.

41 As an article of manufacture, a tool holder comprising .a jaw having'a shank extending therefrom at an angle and adapted to be set in the tool post so that the jaw will be located with its sides perpendicular to the llO axis of the work to be operated upon, a loose jaw adapted to rest against the first named jaw, means for securing the loose jaw against the other jaw, both of said jaws having grooves located longitudinally along the sides of the two jaws and being adapted tohold the top and bottom edges of a cutting off tool, and a stop gauge pivotally mounted on. the lower jaw comprising a slotted plate with a screw parallel to the 1 axis of the work adjustably mounted thereon.

In testimony whereof I have hereunto afiixed my signature.

AURIL BOUSQUET. 

